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Reuben S. Leibowitz

SPG
DIRECTOR · SIMON PROPERTY GROUP INC. · CIK 0001210982
FILING MIX · LIFETIME100%/0%
BUYS
38
SELLS
0
TOTAL VALUE
$1.68M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
55,797
AVG SELL PX
—
TRADE KIND
SHOWING 38 / 38
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
28 backtested trades · 8 horizons · 11 pending
Forward-return performance of every backtestable P/S trade by Reuben S. Leibowitz, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d28+50.00%+1.71%-0.30%+2.00%+0.15%—
14d28+57.14%+0.49%+1.11%-0.62%-0.18%—
30d28+67.86%+5.07%+3.98%+1.09%+0.65%—
60d28+67.86%+7.08%+5.16%+1.77%+3.05%—
90d28+67.86%+13.41%+7.51%+5.90%+3.95%—
180d28(1 pending)+74.07%+18.11%+12.29%+5.81%+3.00%—
1y28(3 pending)+84.00%+44.97%+22.81%+22.16%+6.23%—
2y28(7 pending)+90.48%+68.67%+40.33%+28.35%+13.68%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SPG · 55,797 shares · as of Jun 30, 2026
014,66529,33043,99458,659202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 38 buys / 0 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
25$223.94$5.6K55,797Jun 30, 2026Jul 1, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
430$223.14$96.0K55,719Jun 30, 2026Jul 1, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
53$225.03$11.9K55,772Jun 30, 2026Jul 1, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,159——55,289May 13, 2026May 15, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
491$183.80$90.2K54,130Mar 31, 2026Apr 1, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
480$186.00$89.3K53,639Dec 31, 2025Jan 5, 2026 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
464$185.95$86.3K58,659Sep 30, 2025Oct 1, 2025 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
522$159.29$83.1K58,195Jun 30, 2025Jul 1, 2025 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,272——57,673May 14, 2025May 16, 2025 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
482$164.80$79.4K56,401Mar 31, 2025Apr 2, 2025 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
465$168.59$78.4K55,919Dec 30, 2024Jan 2, 2025 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
453$167.30$75.8K55,454Sep 30, 2024Oct 1, 2024 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
486$150.17$73.0K55,001Jun 28, 2024Jul 2, 2024 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,399——54,515May 8, 2024May 9, 2024 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
438$154.19$67.5K53,116Apr 1, 2024Apr 2, 2024 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
451$143.85$64.9K50,178Dec 29, 2023Jan 2, 2024 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
580$110.04$63.8K49,727Sep 29, 2023Oct 3, 2023 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
526$116.16$61.1K49,147Jun 30, 2023Jul 5, 2023 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,813——48,621May 4, 2023May 5, 2023 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
506$109.33$55.3K46,808Mar 31, 2023Apr 3, 2023 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
468$116.42$54.5K46,302Dec 30, 2022Jan 3, 2023 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
583$89.29$52.1K45,834Sep 30, 2022Oct 4, 2022 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
528$93.83$49.5K45,251Jun 30, 2022Jul 5, 2022 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,608——44,723May 11, 2022May 11, 2022 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
335$134.10$44.9K43,115Mar 31, 2022Apr 4, 2022 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
277$160.28$44.4K45,280Dec 31, 2021Jan 4, 2022 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
301$132.65$39.9K45,003Sep 30, 2021Oct 4, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
297$123.87$36.8K44,702Jul 23, 2021Jul 26, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
1,667——44,405May 12, 2021May 14, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
272$116.37$31.7K42,738Apr 23, 2021Apr 26, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
339$92.44$31.3K42,466Jan 22, 2021Mar 22, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
455$67.58$30.7K42,127Oct 23, 2020Mar 22, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
488$61.66$30.1K41,672Jul 24, 2020Mar 22, 2021 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASEGRANT
Stock grant
3,415——41,184May 12, 2020May 14, 2020 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
500$50.18$25.1K37,769Mar 18, 2020Mar 18, 2020 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
500$50.11$25.1K37,269Mar 18, 2020Mar 18, 2020 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
1,000$64.25$64.3K36,769Mar 17, 2020Mar 17, 2020 ↗View →
SPG
SIMON PROPERTY GROUP INC.
PURCHASE
500$66.15$33.1K35,434Mar 17, 2020Mar 17, 2020 ↗View →
Other insiders · SPG
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About this filer
CIK 0001210982
ROLE
Director
PRIMARY
SPG
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001210982DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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